PB23000096 (Grimoire of Usami)
UID: 426, Registered at 2024-10-10 17:05:51, last login at 2025-3-11 14:51:42, currently offline.
Solved 50 problems, RP: 145 (No. 21)
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Bio
「终于，人类的梦想之一，月面旅行也可以面向一般民众开放了！」 -
Accepted Problems
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Recent Activities
This person is lazy and didn't join any contests or homework.